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[Post New]2 Jun 2007 11:15:25 IST
    Subject: Re:motion in one dimension
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sboakarthik (2)

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D/v-20=18/60 -- i
D/v+20=6/60 --ii
solving for v & D
we get D=4km & v=20 km/hr
t=D/v
 =1/5hrs
 =12min (c)

pls inform me it its wrong
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